Only when b = 0 or k = 1.
If f(x) = mx + b, then
f (kx) = m (kx) + b = mkx + b
while
k f(x) = k (mx + b) = kmx + kb
The two expression are identical only if
kb = b ===> kb - b = 0 ===> b (k - 1) = 0 ===> b = 0 or k = 1
what percentage of persons who lose weight are able to maintain it for more than a year?
Answer: 20%
Step-by-step explanation:
There are three different cubes such that the first cube is 64 times the volume of the second, and the volume of the second cube is 27 times less than the volume of the third. Which among the following is the ratio of the side of the first cube to third cube?
Answer:
4/3
Step-by-step explanation:
If the ratio between the volumes of the first and the second cube is 64, the ratio between the sides is the cubic root of the ratio between the volumes, so:
\(V1 / V2 = 64\)
\(s1 / s2 = \sqrt[3]{64} = 4\)
Doing the same for the second and third cubes, we have:
\(V2 / V3 = 1/27\)
\(s2/ s3 = \sqrt[3]{1/27} = 1/3\)
So the ratio of the first cube side and the third cube side is:
\(s1 / s3 = (s1/s2) * (s2/s3) = 4 * (1/3) = 4/3\)
10.4 For the following situation. fal determine which evatuation nethod is probably the cusiese and lasitest (o apply hy hand and hy eomputer in order 10 selece from the five allematives, and (h) thst
Based on the provided question, it seems like you are asking about the most efficient evaluation method, either by hand or using a computer. To determine which method is the most suitable, you need to consider the complexity of the evaluation process and the number of alternatives.
Using a computer is generally faster and more accurate when dealing with large datasets or complex calculations. On the other hand, evaluating by hand may be more suitable for smaller datasets or simpler calculations. It can provide a more hands-on approach, allowing for a deeper understanding of the evaluation process. However, this method is generally more time-consuming and prone to human error.
To select the most appropriate evaluation method, consider the complexity of the task and the available resources. If the evaluation involves a large amount of data or complex calculations, using a computer would likely be the most efficient choice. However, if the task is relatively simple or involves a smaller dataset, evaluating by hand may suffice. In conclusion, the choice between evaluating by hand or using a computer depends on the complexity of the task and the available resources. Consider these factors to determine the most suitable method.
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Multiply. Write your answer in simplest form.
√5 (3-√2)
Answer:
Step-by-step explanation:
What is the first thing you must do to solve a stoichiometry problem.
To solve a stoichiometry problem, the first thing you must do is identify the given and desired quantities. This involves understanding the balanced chemical equation and determining the substances involved.
Stoichiometry is the quantitative relationship between reactants and products in a chemical reaction. The given quantities are the information provided in the problem, such as the mass, volume, or moles of a particular substance. The desired quantity is what you are trying to find. By identifying these quantities, you can determine the appropriate conversion factors and set up the necessary calculations to solve the problem.
For example, if the problem gives you the mass of a reactant and asks for the volume of a product, you would start by identifying the given mass and the desired volume. From the balanced chemical equation, you can determine the molar ratio between the reactant and product. This ratio allows you to convert the given mass to moles, and then use the molar ratio to convert moles of the reactant to moles of the product. Finally, you can convert the moles of the product to the desired volume using the appropriate conversion factor, such as the molar volume of a gas at a given temperature and pressure.
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) The value of shares, t years after their floatation on the stock market, is modelled by V=10e 0.09t
Find the initial value of these shares and values after 5 years, 10 years and 12 years, respectively. Round your answer to two decimal places. [9 marks] During a recession, a firm's revenue declined continuously so that the total revenue (TR) in t years' time is modelled as TR=10e −0.19t
(in million dollars) Calculate the current revenue and revenue in 5 years' time. After how many years the revenue of this firm is going to drop to $1 million? Round your answer to two decimal places.
After approximately 12.13 years, the revenue of this firm is going to drop to $1 million.
The value of shares t years after their floatation on the stock market, is modelled by V = 10e0.09t
The initial value of shares = V when t = 0. So, putting t = 0 in V = 10e0.09t,
we get
V = 10e0.09 × 0= 10e0 = 10 × 1 = 10 million dollars.
The values after 5 years, 10 years and 12 years, respectively are:
For t = 5, V = 10e0.09 × 5 ≈ 19.65 million dollarsFor t = 10, V = 10e0.09 × 10 ≈ 38.43 million dollarsFor t = 12, V = 10e0.09 × 12 ≈ 47.43 million dollars
The total revenue (TR) in t years' time is modelled as TR = 10e−0.19t (in million dollars)
The current revenue is the total revenue when t = 0.
So, putting t = 0 in TR = 10e−0.19t, we get
TR = 10e−0.19 × 0= 10e0= 10 million dollars
Revenue in 5 years' time is TR when t = 5.
So, putting t = 5 in TR = 10e−0.19t, we get
TR = 10e−0.19 × 5≈ 4.35 million dollars
To find when the revenue of this firm is going to drop to $1 million, we need to solve the equation TR = 1.
Substituting TR = 1 in TR = 10e−0.19t, we get1 = 10e−0.19t⟹ e−0.19t= 0.1
Taking natural logarithm on both sides, we get−0.19t = ln 0.1 = −2.303
Therefore, t = 2.303 ÷ 0.19 ≈ 12.13 years.
So, after approximately 12.13 years, the revenue of this firm is going to drop to $1 million.
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What is the area of the square below?
2.4 in
2.4 in
O A. 8 in2
O B. 5.76 in
OC. 5.76 in2
D. 5.76 ft
Answer:
O C. 5.76 in2
Step-by-step explanation:
To find the area of a square, the formula is
length x width = area
length = 2.4
width = 2.4
2.4in x 2.4in = 5.76 in2
in2 is the part of the answer since in x in = in2
What is the solution of the system?
5x + 2y = 9
4x−3y=44
Answer:
(5,-8)
Step-by-step explanation:
5x+2y=9
-2y -2y
5x=-2y+9
^divided that by 5 on both sides
x=-2/5y+9/5
4x-3y=44
4(-2/5y+9/5)-3y=44
-23/5y+36/5=44
^add -36/5 on both sides
-23/5y=184/5
^divded -23/5 on both sides
y=-8
x=-2/5(-8)+9/5
x=5
what is the equation of the line?
Answer:
x = -9 also called undefined slope.
Step-by-step explanation:
And if the line is like this ____________ it is zero slope and the equation is the number that is passes through the y- intercept.
Hope this helps.
x = -9
Answer:
x=-9
I hope this is good enough:
There are 13 buttons in a bag 9 buttons are white. 4 buttons are black Carol takes a button at random from the bag, and keeps it She now takes another button from the bag. Work out the probability that Carol takes a button of each colour.
Step-by-step explanation:
Answer is case 1st:
P(of white button) = 9/13
P(of black button) = 4/12
Case 2nd
P(of black button) = 4/13
P(of white button) = 9/12
Explanation
Given: A Question
To find: Probability
Solution :Case 1st
If carol takes the first button is white
P(of picking a white button) = 9/13
And
P(of picking a black button) = 4/12
Case 2nd
If carol takes the first button is black
So, P(of picking a black button) = 4/13
And P( of picking a white button) = 9/12
Solve for x by completing the square: x2 - 12x + 11 = 0
A.
(-11,0) and (1,0)
B.
(1,0) and (11,0)
C.
(0,1) and (0,-11)
Answer:
B
Step-by-step explanation:
x² - 12x + 11 = 0 ( subtract 11 from both sides )
x² - 12x = - 11
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 6)x + 36 = - 11 + 36
(x - 6)² = 25 ( take square root of both sides )
x - 6 = ± \(\sqrt{25}\) = ± 5 ( add 6 to both sides )
x = 6 ± 5
Then
x = 6 - 5 = 1 ⇒ (1, 0 )
x = 6 + 5 = 11 ⇒ (11, 0 )
Can i get help on this answer pls. 20 points rewarded for correct answer
Answer: (a) It appears to take the same amount of time to serve each customer. Predicted amount of time to serve 9 customers: 27
(b) Each dollar spent appears to earn the same number of points. 80 points : $8
Lesley and Enid left their waitress a 15% tip.
The tip was $10.25.
What was their total bill, not including the tip?
Answer: $68.37
Hope this helps;)
Answer:
Cost before tip: $68.34
Cost after tip: $78.59
Step-by-step explanation:
Please see attached image. Calculations are executed in black. Answers are highlighted in blue. Solution explanation is provided in red. Implicit/'skip-over' steps are in green.
~~
Hope this helps.
PLEASE HELP!! I will mark the brainliest!
The perimeter of a rectangle is 56 cm. The length of the rectangle is 2 cm more than the width. Find the dimensions of the rectangle.
Length: ____
Width: ____
Answer:
Rectangles! Nice.
Step-by-step explanation:
This is a very simple problem. Let's first represent the width of the rectangle as the variable x.
Then, we know that the length of the triangle is x+2. See where I'm going with this?
The formula for the perimeter of an rectangle is \(P=2*Length+2*Width\).
All we have to do next is just input our values for the length and width, and you'll be golden!
\(56=2(x+2)+2(x)\\56=4x+4\)
Next to subtract 4 from both sides and then to divide by 4!
\(52=4x\\x=13\)
There's your answer! Don't know why Brainly is bugged right now.
NOTE: If you can't read the answer above, the width is 13cm. This also means that the length is 15cm.
Hope this helps!
Stay safe!
1. Sederhanakan dan nyatakan hasilnya dalam bentuk eksponen.
2. Nyatakan soal berikut dalam notasi ilmiah.
Answer:
>
Step-by-step explanation:
if the measures, in degrees, of the three angles of a triangle are x,x 10, and 2x-6 the triangle must be ____
The three angles are 44, 54, and 82 degrees. Since two angles (44 and 44 degrees) have the same measure, the triangle is isosceles.
If the measures of the three angles of a triangle are x, x + 10, and 2x - 6, the triangle must be isosceles.
In a triangle, the sum of the angles is always 180 degrees. Therefore, we can set up the equation:
x + (x + 10) + (2x - 6) = 180
Combine the terms:
4x + 4 = 180
Subtract 4 from both sides:
4x = 176
Divide by 4:
x = 44
Now, we can find the measures of the other two angles:
x + 10 = 44 + 10 = 54
2x - 6 = 2(44) - 6 = 88 - 6 = 82
The three angles are 44, 54, and 82 degrees. Since two angles (44 and 44 degrees) have the same measure, the triangle is isosceles.
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A bolt manufacturer is very concerned about the consistency with which his machines produce bolts. The bolts should be 0.2 centimeters in diameter. The variance of the bolts should be 0.025. A random sample of 15 bolts has an average diameter of 0.21 cm with a standard deviation of 0.1587. Can the manufacturer conclude that the bolts vary by more than the required variance at α=0.01 level? Step 1 of 5: State the hypotheses in terms of the standard deviation. Round the standard deviation to four decimal places when necessary. A bolt manufacturer is very concerned about the consistency with which his machines produce bolts. The bolts should be 0.2 centimeters in diameter. The variance of the bolts should be 0.025. A random sample of 15 bolts has an average diameter of 0.21 cm with a standard deviation of 0.1587. Can the manufacturer conclude that the bolts vary by more than the required variance at α=0.01 level? Step 2 of 5: Determine the critical value(s) of the test statistic. If the test is twotailed, separate the values with a comma. Round your answer to three decimal places. A bolt manufacturer is very concerned about the consistency with which his machines produce boits. The bolts should be 0.2 centimeters in diameter. The variance of the boits should be 0.025. A random sample of 15 bolts has an average diameter of 0.21 cm with a standard deviation of 0.1587. Can the manufacturer conclude that the bolts vary by more than the required variance at α=0.01 level?
To determine if the bolts vary by more than the required variance, we can conduct a hypothesis test. The null hypothesis (H₀) states that the variance of the bolts is equal to or less than the required variance (σ² ≤ 0.025), while the alternative hypothesis (H₁) states that the variance is greater than the required variance (σ² > 0.025).
Next, we need to determine the critical value(s) of the test statistic. Since we are testing for variance, we will use the chi-square distribution. For a one-tailed test with α = 0.01 and 14 degrees of freedom (n-1), the critical value is 27.488.
Now, we can compare the test statistic to the critical value. The test statistic is calculated as (n-1) * s² / σ², where n is the sample size (15), s² is the sample variance (0.1587²), and σ² is the required variance (0.025).
If the test statistic is greater than the critical value, we reject the null hypothesis and conclude that the bolts vary by more than the required variance. Otherwise, we fail to reject the null hypothesis.
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To determine if the bolts vary by more than the required variance, we can conduct a hypothesis test. The null hypothesis (H₀) states that the variance of the bolts is equal to or less than the required variance (σ² ≤ 0.025), while the alternative hypothesis (H₁) states that the variance is greater than the required variance (σ² > 0.025).
Next, we need to determine the critical value(s) of the test statistic. Since we are testing for variance, we will use the chi-square distribution. For a one-tailed test with α = 0.01 and 14 degrees of freedom (n-1), the critical value is 27.488.
Now, we can compare the test statistic to the critical value. The test statistic is calculated as (n-1) * s² / σ², where n is the sample size (15), s² is the sample variance (0.1587²), and σ² is the required variance (0.025).
If the test statistic is greater than the critical value, we reject the null hypothesis and conclude that the bolts vary by more than the required variance. Otherwise, we fail to reject the null hypothesis.
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Find the inverse of 3x - 6
3x - 6
3x - 6
-3x + 6
-3x + 6
3x + 6
3x + 6
-3x + 6
Answer:
3x+6 is inverse of 3x-6.it is a additive inverse and if we add both we get 0.
Qd=95−4P
Qs=5+P
a. What is Qd if P=5 ? b. What is P if Qs=20 ? β=9 c. If Qd=Qs, solve for P.
P = 90 is the solution for the given equation.
Given: Qd=95−4
PQs=5+P
To find Qd if P=5:
Put P = 5 in the equation
Qd=95−4P
Qd = 95 - 4 x 5
Qd = 75
So, Qd = 75.
To find P if Qs = 20:
Put Qs = 20 in the equation
Qs = 5 + PP
= Qs - 5P
= 20 - 5P
= 15
So, P = 15.
To solve Qd=Qs, substitute Qd and Qs with their respective values.
Qd = Qs
95 - 4P = 5 + P
Subtract P from both sides.
95 - 4P - P = 5
Add 4P to both sides.
95 - P = 5
Subtract 95 from both sides.
- P = - 90
Divide both sides by - 1.
P = 90
Thus, P = 90 is the solution for the given equation.
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pls help
-21 ÷ b = 3, b = ? and uhm this one too
3c + 1 = 10, c = ?
Answer:
-21 ÷ b = 3, b = b=-7
3c + 1 = 10, c = c=1/7
Hope this helps!
The following information should be taken into consideration to answer this item: If the scores of 400 subjects in a psychological scale have been distributed normally with the mean score of 100 and standard deviation of 15: The Z score that equivalent to the raw score 92.5 is.... A.+ 0.5 B. -1.25 C.-0.5 D.-0.25
The Z score that is equivalent to the raw score 92.5 is B. -1.25.
A Z score represents the number of standard deviations a raw score is from the mean in a normal distribution. To calculate the Z score, we use the formula: Z = (X - μ) / σ, where X is the raw score, μ is the mean, and σ is the standard deviation.
Given that the mean score is 100 and the standard deviation is 15, we can calculate the Z score for the raw score 92.5 as follows:
Z = (92.5 - 100) / 15
Z = -7.5 / 15
Z = -0.5
Therefore, the Z score that is equivalent to the raw score 92.5 is -0.5.
The Z score is a useful measure in statistics that allows us to standardize and compare data points across different distributions. It helps us understand the relative position of a data point within a distribution and determine how unusual or typical that data point is compared to others. By calculating the Z score, we can easily determine the percentage of data points that fall below or above a particular value in a normal distribution, which aids in making statistical inferences and drawing conclusions.
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determine the equation of the parabola graphed below. note: when responding if the number is negative you can't change the plus sign to a negative sign. just type the negative in the box (ie -4 would read -4).
The equation of the graphed parabola is y=a (x + 3) ^2 -4.
Given that parabola is plotted, concave upwards, with vertex located at coordinates (-3, -4).
According to the question, we need to find the equation of the graphed parabola.
The equation of a quadratic function of vertex (h, k) is given by y=a + k
In the above equation the leading coefficient is "a"
We are given point (-3, -4).
We need to put the value of h=-3 and k=-4 and the required equation, and we will get the equation as: -
y=a (x + 3) ^2 -4
Therefore, the equation of the parabola that is plotted, concave up, with vertex located at coordinates (-3, -4) is y=a (x + 3) ^2 -4.
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Answer the statistical measures and create a box and whiskers plot for the following set of data. 3,4,4,6,6,8,9,12,15
Minimum value = 3, Q1 = 4, Median = 6, Q3 = 10.5, Maximum value = 15.
Minimum value = 3
To find Q1 (the first quartile):
Arrange the data in ascending order: 3, 4, 4, 6, 6, 8, 9, 12, 15
Find the median of the lower half of the data: 3, 4, 4, 6, 6 → median = 4
Q1 is the median of the lower half of the data: Q1 = 4
Median (second quartile) = 6
To find Q3 (the third quartile):
Arrange the data in ascending order: 3, 4, 4, 6, 6, 8, 9, 12, 15
Find the median of the upper half of the data: 8, 9, 12, 15 → median = 10.5
Q3 is the median of the upper half of the data: Q3 = 10.5
Maximum value = 15
Therefore, the statistical measures for the given data set are:
Minimum value = 3, Q1 = 4, Median = 6, Q3 = 10.5, Maximum value = 15.
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The given question is incomplete, the complete question is:
Answer the statistical measures for the following set of data.3,4,4,6,6,8,9,12,15. Fill in the blanks. Minimum value = , Q₁ = , Median = , Q₃ = and maximum value = of the given data set.
which equations would you use the subtraction property of equality to solve? check all that apply. 5 y
answer 5y - 12 = 8.
In order to use the subtraction property of equality to solve equations, the subtraction of the same quantity should be done on both sides of the equation.
Here are the equations in which you can use the subtraction property of equality to solve:7x + 2 = 25-2y = 10-4r = 28-1/3p = 15+9z = -27
The only equation from the options given in the question is 5y - 12 = 8. So, we can use the subtraction property of equality to solve this equation as follows:5y - 12 = 8Add 12 to both sides5y - 12 + 12 = 8 + 125y = 20Divide both sides by 55y/5 = 20/5y = 4 Therefore, the equation in which we can use the subtraction property of equality to solve is 5y - 12 = 8.
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i have 2 years left of school im not tryna fail I'm tryna get out off this Hail hold so could someone help
Answer:
It’s B
Step-by-step explanation:
Answer:
i think the answer is c because it has to do with the congruence of porportional relationships
Step-by-step explanation:
How many degrees is arc PQ?
Answer:
Step-by-step explanation:
Arc PQ is 60°
Answer:
\(\boxed {\boxed {\sf Arc \ { PQ } = \ 60 \ degrees}}\)
Step-by-step explanation:
The angle that forms arc PQ is a central angle, because the angle's vertex is at the center of the circle.
According to arc-angle relationships, the measure of a central angle is equal to the arc.
Since the central angle is equal to 60 degrees, arc PQ is also equal to 60 degrees.
The new Bamo Super Ball has a rebound ratio of 0.97. If you dropped the ball from a
height of 125 feet, how high will it bounce on the tenth bounce?
Please help thank you!!
Answer:
92.18 feet
Step-by-step explanation:
t(n)=125(.97)^x
t(10)=124(.97)^10
Sequence cant have partial or discrete bounce
Answer:
92.18 ft
Step-by-step explanation:
The rebound ratio 0.97 means the ball will rebound 97% of its height on the previous bounce.
Bounce Height
1 125(0.97) = 121.25
2 125(0.97)(0.97) = 117.6125
3 125(0.97)(0.97)(0.97) = 114.084125
See a pattern?
Bounce Height
1 125(0.97)
2 125(0.97)^2
3 125(0.97)^3 the exponent matches the bounce number
Tenth bounce:
10 125(0.97)^10 = 92.18 (rounded to 2 places)
A planter is shaped like a regular hexagon. The side lengths are 3 meters and the apothem is 5. 2 m. What is the area of the hexagonal planter?
The area of a regular hexagon = (3√3 / 2) × s² Where, The apothem is a line drawn from the center of a polygon to the midpoint of one of its sides.
s = side of the hexagon.
Area of the hexagon = (3√3 / 2) × s² Area of hexagon with side 3 meters = (3√3 / 2) × 3²
= (3√3 / 2) × 9
= 4.5 × 9 × √3
= 40.5 √3 sq. meters
Hence, the area of the hexagonal planter is 40.5 √3 sq. meters A hexagon is a six-sided figure with six angles. A planter is shaped like a regular hexagon. It has six sides with a length of 3 meters each. The apothem is 5.2 meters long. The apothem is a line drawn from the center of a polygon to the midpoint of one of its sides.
The apothem divides the hexagon into six congruent triangles. Since the hexagon is regular, all six triangles are congruent. The formula for finding the area of a regular hexagon is as follows: Area of hexagon = (3√3 / 2) × s²Where, s is the length of the side of the hexagon. In this case, the side length is 3 meters. Thus, substituting s = 3 in the formula,
Area of hexagon = (3√3 / 2) × 3²
= (3√3 / 2) × 9
= 4.5 × 9 × √3
= 40.5 √3 sq. meters Therefore, the area of the hexagonal planter is 40.5 √3 sq. meters.
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When a graphed line is vertical it indicates that the relation:
1. is a function and begins with y =
2. is not a function and begins with x =
3. is a function and begins with x =
4. is not a function and begins with y =
Answer:
y does not depend on x - it is not a function
That leaves (2) or (4)
Since one does not need y in the equation (4) is eliminated
(2) is the only possible result
For example: x = 5
Select the correct answer.
Find the solution to the system of equations given below using elimination.
3x + 2y = -3
9x + 4y = 3
Answer:
x = 3 and y= -6 or (3, -6)
Step-by-step explanation:
-3(3x + 2y = -3) 3x + 2(-6) = -3
9x + 4y = 3 3x -12 = -3
3x = 9
-9x - 6y = 9 x = 3
9x +4y = 3
-2y = 12
y = -6